Insulating building-slab



T. HENDERSON. v

INSULATING BUILDING SLAB. APPLICATION FILED NOV. 24. 1919.

Patented Oct. 26, 1920.

UNET era TURNER HENDERSON, 0E AIBINGDON, ENGLAND.

msutarme BUILDING-SLAB.

Specification of Letters Patent.

Patented Oct. 26, 1920.

Application filed November 24, 1919. Serial No. 340,195.

To all whom it may concern:

Be it known that I, TURNER HENDERSON,

M. A., a citizen of the United Kingdom of Great Britain and Ireland, andresident of The Coppice, Clifton Hampden, Abingdon, in the county ofBerkshire, England, have invented certain new and useful Improvements inInsulating Building-Slabs, of which the following is a specification,such as will enable others skilled in the art to which it appertains tomake and use the same.

' This invention relates to insulating slabs for building and the likepurposes and is designed to provide slabs which may be of any suitablesize, of considerable strength, and having good insulating propertiesagainst both temperature and sound.

The improved slab'comprises several layers of wood strips, the membersof each layer being spaced apart and the layers arranged crosswise inrelation to each other with a sheet of paper or other suitable materialbetween them, the whole being then inclosed in any suitable manner, suchas by covering the two faces, that is theoutside of the uppermost andthe outside of the lowermost layer with thin wood, chip or other suchsubstanceand inclosing some or all of the edges of the slab within alight wood frame.

My invention is shown by way of example in the accompanying drawing, inwhich Figure 1 is a fragmentary view showing the mode of constructingthe slab.

Fig. 2 is a sectional view of'one of my insulating slabs in which fourlayers of wood strips are used.

Fig. 3 shows on a smaller scale than Fig. 2, a perspective view ofa-completed slab.

Referring to Fig. 1 of the drawings a represents a sheet of paper orother suitable material upon which is mounted the requisite 7 number ofsay 64, wood strips 72, of say a quarter of an inch square, and 24inches long, spacing them about one-half ,inch apart. These strips arethen secured to the paper which is already the requisite sizesay 48inches long and 24 inches wide. The strips are secured to the paper byany suitable adhesive. Another sheet of paper of the same size is thentaken upon which say 32 strips of wood of similar section as the firstset and similarly spaced, are secured by the adhesive. These two layersare'then stuck together with the strips of one layer crossing the stripsof the other layer at right angles; other such layers being added insimilar manner as may be desired. When the requisite thickness has beenmade up, the top and bottom sides are then preferably faced with thinsheets of suitable material, also the edges are similarly finished.

In the section shown in Fig. 2 there are four layers of wood strips 1)and 0, each layer being arranged at right angles to the adjoining layerand having layers of paper a and 0 between them as indicated. 6 and fshow respectively a thin sheet of wood secured to the top and bottomfaces to form flat outersurfaces as at e in Fig. 3.

A sheet of paper may separate the outer sheets from the top and from thebottom layers of strips if necessary.

WVooden strips 9 close the edges of the layers thus forming a completeslab as seen in Fig. 3.

It will be evident that because of the paper sheeting or equivalentmaterial on which theflstrips are mounted and because thestrips arecontinuous and substantially parallel on each sheet the spaces betweenthe strips on each sheet are entirely inclosed and do not communicatewith any other spaces on the same or on an adjoining sheet and thatthereby every space is a separate compartment or pocket of air each ofwhich consequently has high insulating properties so that a slab formedof these layers forms an excellent thermal and sound insulator.

hat I claim and desire to secure by Let-- ters Patent is A slab forbuilding and analogous purpose comprising a plurality of layers ofstrips of wood, each layer being arranged substantially at right anglesto the layer next thereto, the strips in each layer being spaced apartand substantially parallel to each other, sheets of material betweeneach pair of layers, closure sheets of material on the outer surfaces ofthe outside layers, and

closures for the edges of the slab, said closures bearing directlyagainst the ends of the wood strips and the edges of the first namedsheets. I

In witness whereof I have hereunto set my hand in presence of twowitnesses.

TURNER HENDERSON. Witnesses:

HENRY FAIRBROTHER, BARBARABROOM."

